Good to know.

Yes — 100% Grade 6A long-fiber mulberry silk, the finest grade produced, woven to 22 momme (our bedding: 25 momme). Nothing is blended or spun.

Momme is the weight and density of the weave. Our pillowcases, sleep masks, bonnets, scrunchies and robe are 22 momme; our bedding is 25 momme.

Cotton draws moisture from skin and hair and creates the friction that creases and frays. Grade 6A silk does neither, and lasts years rather than seasons — which is what makes it worth it.

Yes. It is OEKO-TEX® Standard 100 certified, with a smooth surface that is gentle on sensitive skin.

Standard shipping is complimentary on every order, to every country we ship to. Orders are dispatched within 1–3 business days, and standard international delivery takes 5–8 business days (5–10 within Israel).

Yes. Available destinations and shipping rates are shown at checkout. International orders may be subject to customs duties or import taxes set by your local authorities; these charges are the customer's responsibility.

Order changes (address, product or quantity) and cancellations can be requested within 12 hours of purchase by emailing support@byvalittu.com. After that, your order may already be processed and can no longer be modified or cancelled.

You can request a return within 30 days of delivery. Items must be unused, unwashed and in their original packaging — for hygiene reasons, we can't accept silk that has been used or washed. Return shipping is paid by the customer unless the item is incorrect, damaged or defective. Full details are in our Return & Refund Policy. We don't offer direct exchanges — to change size or color, return the item for a refund and place a new order.

Machine washable on a cool, gentle silk cycle in a mesh bag, with a pH-neutral silk detergent. Lay flat or line dry — never tumble dry.

Cared for simply, our silk is made to soften rather than wear out, staying beautiful for years — luxury measured in nights, not seasons.